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A new AiiDA release v1.2.0 is available! You can find more information at our download page. It can be installed through pip as:

pip install aiida-core==1.2.0
reentry scan

N.B.: the `reentry scan` step is crucial as we have added new entry points.

This is the second minor version of the v1 series and comes with mostly new features.
Especially groups have received a lot of new functionality.

Groups can now be subclassed
The `Group` class can now be subclassed to implement custom functionality, just like for example the `Data` node class. They can be registered through entry points in the new entry point category “aiida.groups”. Please refer to the documentation [1] for more details.

Virtual group hierarchy through `GroupPath`The group concept in AiiDA so far has been “flat”. That is to say, group can contain nodes, but you a group cannot contain another group. Many users have expressed the wish to be able to treat groups a bit more like folders on a filesystem and add some hierarchy to them. Thanks to a contribution by Chris Sewell, the `GroupPath` utility now provides a virtual hierarchy based on the group labels. Forward slash characters ‘/’ in group labels will be interpreted as sub groups. A very short demonstration:

Of course the `GroupPath` class provides much more than that and it is also exposed on the CLI through `verdi group path ls`. Extensive documentation of all functionality will be added to the official documentation soon.

More details and download options can be found through the following links: